Side Extension approval rate in Slough
Slough approved 82.4% of side extension applications, based on 2,823 decisions analysed.
Last updated: August 2026
82.4%
side extension approval rate
2,823
Side Extension decisions
2,326
Approved
497
Refused
82.9%
Slough overall
Side Extension applications are approved at roughly the same rate as the Slough average (82.9%).
How side extension compares in Slough
Side Extension
82.4%
Slough all applications
82.9%
Planning a side extension in Slough?
82.4% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.
✓ Your ward's side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Slough →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Slough
83.6%
84.0%
82.4%
87.5%
85.4%
85.6%
74.4%
83.4%
81.2%
71.5%
86.0%
45.0%
78.6%
79.2%
68.8%